<UserControl 
    x:Class="Goldlight.SampleApplication.Views.Marketing.ContactManagementView" 
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" 
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:forms="clr-namespace:System.Windows.Forms;assembly=System.Windows.Forms"
    xmlns:converter="clr-namespace:Goldlight.Mvvm.Base.Converters;assembly=Goldlight.Mvvm.Base"
    xmlns:vm="clr-namespace:Goldlight.SampleApplication.ViewModels.Marketing"
    xmlns:bv="clr-namespace:Goldlight.Mvvm.Base.Behaviors;assembly=Goldlight.Mvvm.Base">
    <UserControl.Resources>
        <converter:DataFormatConverter x:Key="fmt" />
        <vm:ContactManagementViewModel x:Key="ViewModel" />
    </UserControl.Resources>
    <StackPanel DataContext="{StaticResource ViewModel}" Orientation="Vertical">
        <TextBlock Text="Maintain contact"/>
        <TextBox AllowDrop="True" Width="250"
                 bv:TextboxDragDropBehavior.DragDrop="{Binding DataFormat, Mode=Default, Converter={StaticResource fmt}}" />
        <TextBox Width="250" />
        <TextBox Width="250" />
    </StackPanel>
</UserControl>